Portable telephone



FIG. 1 is a bottom, right, front, perspective view of a portable telephone with the keypad cover open showing my new design;

FIG. 2 is a bottom, right, front, perspective view of a portable telephone with the keypad cover closed;

FIG. 3 is a front elevation view of a portable telephone with the keypad cover open;

FIG. 4 is right elevation view of a portable telephone with the keypad cover open;

FIG. 5 is a bottom plan view of a portable telephone with the keypad cover open;

FIG. 6 is a front elevation view of a portable telephone with the keypad cover closed;

FIG. 7 is a right elevation view of a portable telephone with the keypad cover closed;

FIG. 8 is a top plan view of a portable telephone with the keypad cover closed;

FIG. 9 is a rear elevation view of a portable telephone with the keypad cover closed; and,

FIG. 10 is a bottom plan view of a portable telephone with the keypad cover closed. 

The ornamental design for a portable telephone, as shown and described. 